Maanshan's two 936 MWe PWRs closed in July 2024 and May 2025, ending nuclear power in Taiwan. After a law change allowing 60-year licences and a non-binding referendum, Taipower filed a restart plan in March 2026 and the Nuclear Safety Commission approved it in September 2026; operation could resume as early as 2028.
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Current state
| Status | Restart planned |
| Country | Taiwan |
| Location | Hengchun, Pingtung |
| Site | Maanshan (Third NPP) |
| Units | Unit 1, Unit 2 |
| Unit count | 2 |
| Reactor types | PWR |
| Owner / licensee | Taiwan Power Company (Taipower) |
| Final shutdown | 2025-05-17 |
| Notable issue | August 2025 restart referendum won a majority but missed the turnout threshold. |
Notes
Restart (not decommissioning) — likely also in restarts tracker. A decommissioning plan had been published in 2023 (WNA).
Timeline
- 2024-07 — Maanshan 1 shut down as its 40-year licence expired. (source)
- 2025-05-17 — Maanshan 2, Taiwan's last operating reactor, shut down. (source)
- 2025-08 — A restart referendum won a majority but fell short of the turnout threshold. (source)
- 2026-03 — Taipower submitted a restart plan and licence renewal application. (source)
- 2026-09 — The Nuclear Safety Commission approved the Maanshan restart plan. (source)
The timeline is append-only: corrections are added as new entries. Stated targets appear in the current-state table, never as milestones.
Also tracked
- Maanshan Unit 1 (Third Nuclear Power Plant) in the Nuclear Plant Restarts Tracker Under review
- Maanshan Unit 2 (Third Nuclear Power Plant) in the Nuclear Plant Restarts Tracker Under review
Related sites
- Chinshan Nuclear Power Plant Fuel removal · Taiwan
- Duane Arnold Energy Center Restart planned · United States
- Kuosheng Nuclear Power Plant Shut down · Taiwan
- Palisades Nuclear Plant Restart planned · United States
See all 72 sites in the Nuclear Decommissioning Tracker →
Sources
- Nuclear Power in Taiwan — World Nuclear Association, checked 2026-10-11
- Taiwan clears path to restart reactors — Nuclear Engineering International, checked 2026-10-11
- Taiwan regulator completes review of restart plan — World Nuclear News, checked 2026-10-11
- Taiwan considers returning to nuclear power after decade phasing it out — ABC News (Australia), checked 2026-10-11